Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Compartment Fuel Hoses: Installation
2004 Oldsmobile Bravada AWDSECTION Installation
WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the fuel flex hoses (1, 5) to the chassis fuel pipes (2, 4). See Figure .
- Slide the pin, part of air cleaner assembly, into the bracket hole on the left strut tower.
- Position and install the air cleaner inlet over the resonator neck. See Figure .
- Install the push in retainer from the air cleaner to the battery tray.
- Install the air cleaner assembly bolts. Tighten the bolts to specification. See TORQUE SPECIFICATIONS .
- Install the relay center and the push in retainer.
- Connect the relay battery feed cable into the upper air cleaner cover retaining clips.
- Install the battery and battery cables. Tighten to specification. See TORQUE SPECIFICATIONS .
- Connect the air cleaner outlet duct. Tighten the air cleaner outlet duct clamps to specification. See TORQUE SPECIFICATIONS .
- Install and lubricate NEW "O" ring to engine fuel return pipe-to-fuel pressure regulator end, with clean engine oil.
- Connect the engine fuel return pipe to the fuel pressure regulator.
- Install and lubricate the NEW "O" ring to engine fuel feed pipe-to-fuel rail end, with clean engine oil.
- Connect the engine fuel feed pipe to the fuel rail. Tighten the engine fuel pipe fittings to specification. See TORQUE SPECIFICATIONS .
- Install the engine compartment fuel pipe retainer bolt. Tighten the fuel pipe retainer bolt to specification. See TORQUE SPECIFICATIONS .
- Install the upper intake manifold gaskets on the manifold. See Fig 1 .
- Apply Thread Lock (GM PN 12345382), or equivalent, to the threads of the bolts. Install the upper intake manifold bolts. See Figure . Tighten the bolts to specification. See TORQUE SPECIFICATIONS .
- Install the MAP sensor and bolts. See Figure .
- Connect the MAP sensor vacuum line. Connect the MAP sensor harness connector.
- Connect the vacuum modulator.
- Install the vacuum hose to the fuel pressure regulator and the crankcase ventilation valve. See Figure .
- Connect the TP sensor.
- Connect the IAC valve.
- Connect the injector harness.
- Connect the coolant hoses from the throttle body.
- Install the EVAP canister purge solenoid. See Figure .
- Install the electronic ignition coil and module assembly. See Figure .
- Install the EGR pipe, if equipped.
- Install the throttle cables and bracket to the throttle body.
- Install the brake vacuum pipe.
- Fill and bleed the cooling system. See COOLING SYSTEM BLEEDING under COOLING SYSTEM.
- Connect the quick-connect fittings in the engine compartment.
- Connect the negative battery cable.
- Inspect for fuel leaks using the following procedures:
- Turn ignition switch to RUN position, with the engine OFF for 2 seconds.
- Turn ignition switch to OFF position for 10 seconds.
- Turn ignition switch to OFF position, with the engine OFF.
- Check for fuel leaks.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.